You probably need to disable comparator inputs as well as ADC.  Comparator
inputs will read as '0', regardless of what you're outputting on the digita=
l
pin.  I.e. pin goes high externally, but internally a port read will return
a '0' on enabled analog inputs, whether they are ADC or comparator.

I think you'll find that the simulator is correctly showing what a port rea=
d
would return.


Regards,
David Meiklejohn



John Coppens wrote
> Sent: Monday, 20 August 2012 11:09 AM
> To: piclist@mit.edu
> Subject: Re: [PIC] Doubt on RAx pins
>=20
> On Sun, 19 Aug 2012 18:21:18 -0300
> John Coppens <john@jcoppens.com> wrote:
>=20
> 		processor pic16f874
>=20
> 		include	P16F874.INC
>=20
> 		cblock	0x20
> testvar
> 		endc
>=20
> 		org	0
>=20
> 		banksel	TRISA
> 		movlw	b'00000111'	; Tried both 6 and 7
> 		movwf	ADCON1
>=20
> 		movlw	b'00111001'
> 		movwf	TRISA
>=20
> 		clrf	TRISB
>=20
>=20
> 		banksel	PORTA
> 		bsf	PORTA,1		; These seem to have no effect
> 		bsf	PORTA,2
>=20
> 		bsf	PORTB,3		; This does work
>=20
> 		bsf	testvar,2	; This too, of course
>=20
> 		end
> --
> http://www.piclist.com PIC/SX FAQ & list archive View/change your
> membership options at http://mailman.mit.edu/mailman/listinfo/piclist

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